Service Guide RIGOL
Publication number: SGC01108-1210
Dec. 2008
DM3000 Series Digital Multimeter
© 2008 RIGOL Technologies, Inc. All Rights Reserved
DM3061/2/4
DM3051/2/4
RIGOL
I
Copyright Information
© 2008 RIGOL Technologies, Inc. All Rights Reserved.
RIGOL products are protected by patent law in and outside of P.R. China.
Information in this publication replaces all previously corresponding material.
RIGOL Technologies, Inc. reserves the right to modify or change part of or all the
specifications and pricing policies at company’s sole decision.
NOTE: RIGOL is registered trademark of RIGOL TECHNOLOGIES, INC.
Service Guide for DM3000 Series
RIGOL
II
Safety Notices
Review the following safety precautions carefully before operating the instrument to
avoid any personal injuries or damages to the instrument and any products connected
to it.
To avoid potential hazards, it is necessary to use the instrument as specified by this
user’s guide only.
The instrument should be serviced by qualified personnel only.
Avoid Fire or Personal Injury.
Use Proper Power Cord. Use the power cord designed for the instrument as
authorized in your country only.
Connect and Disconnect Correctly. Do not connect or disconnect test leads while
they are connected to a voltage source.
Ground The Instrument. The instrument is grounded through the grounding
conductor of the power cord. To avoid electric shock the instrument grounding
conductor(s) must be grounded properly before making connections to the input or
output terminals of the instrument.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings
and marks on the instrument. Follow the user’s guide for further ratings information
before making connections to the instrument.
Do Not Operate Without Covers. Do not operate the instrument with covers or
panels removed.
Use Proper Fuse. Use the fuse of the type, voltage and current ratings as specified
for the instrument.
Avoid Circuit or Wire Exposure. Do not touch exposed connections and
components when power is on.
Do Not Operate With Suspected Failures. If you suspect there is damage with
this product, you have it inspected by qualified service personnel authorized by
RIGOL before further operations.
Provide proper ventilation.
Service Guide for DM3000 Series
RIGOL
III
Do Not Operate in Wet/Damp Conditions.
Do Not Operate in an Explosive atmosphere.
Keep Product Surfaces Clean and Dry.
The disturbance test of all the models meet the limit values of A in the
standard of EN 61326: 1997+A1+A2+A3, but can’t meet the limit values of
B.
WARNING
IEC Measurement Category II. The HI and LO input terminals may be connected to
mains in IEC Category II installations for line voltages up to 300 VAC. To avoid the
danger of electric shock, do not connect the inputs to mains for line voltages above
300 VAC.
Protection Limits: To avoid instrument damage and the risk of electric shock, do not
exceed any of the Protection Limits defined in the following section.
IEC Measurement Category II Overvoltage Protection
To protect against the danger of electric shock, the RIGOL DM3000 series Digital
Multimeter provides overvoltage protection for line-voltage mains connections
meeting both of the following conditions: the HI and LO input terminals are connected
to the mains under Measurement Category II conditions, defined below, and The
mains are limited to a maximum line voltage of 300 VAC. IEC Measurement Category
II includes electrical devices connected to mains at an outlet on a branch circuit.
Such devices include most small appliances, test equipment, and other devices that
plug into a branch outlet or socket. The DM3000 series Digital Multimeter may be used
to make measurements with the HI and LO inputs connected to mains in such devices,
or to the branch outlet itself (up to 300 VAC). However, the DM3000 series Digital
Multimeter may not be used with its HI and LO inputs connected to mains in
permanently installed electrical devices such as the main circuit-breaker panel,
sub-panel disconnect boxes, or permanently wired motors. Such devices and circuits
are subject to overvoltage that may exceed the protection limits of the DM3000 series
Digital Multimeter.
NOTE: Voltages above 300 VAC may be measured only in circuits that are isolated
from mains. However, transient overvoltage is also present on circuits that are
isolated from mains. The DM3000 series Digital Multimeter is designed to safely
Service Guide for DM3000 Series
RIGOL
IV
withstand occasional transient overvoltage up to 2500 Vpk. Do not use this equipment
to measure circuits where transient overvoltage could exceed this level.
Service Guide for DM3000 Series
RIGOL
V
! ! !
Hazardous
Voltage
Refer to
Instructions
Protective
Earth
Terminal
Earth
Ground
Chassis
Ground
!
Safety Terms and Symbols
Terms in This Guide. These terms may appear in this guide:
WARNING: Warning statements identify conditions or practices that could
result in injury or loss of life.
CAUTION: Caution statements identify conditions or practices that could
result in damage to this product or other property.
CAT II (300V): IEC Measurement Category II. Inputs may be connected to
mains (up to 300 VAC) under Category II Overvoltage
conditions.
Terms on the Product: These terms may appear on the product:
DANGER indicates an injury hazard may happen immediately.
WARNING indicates an injury hazard may not happen immediately.
CAUTION indicates that a potential damage to the instrument or other property
may occur.
Symbols on the Product: These symbols may appear on the Instrument:
Service Guide for DM3000 Series
RIGOL
VI
30
6
1
DM
General-Purpose Multimeter
The document covers the description and introduction of six models of DM3000 Series
Digital Multimeter:
DM3061, DM3062, DM3064;
DM3051, DM3052, DM3054.
DM3000 Series Digital Multimeter naming rules:
Prefix of desktop Digital Multimeter
Serial Number
6－6½ , 5－5¾ digit
No.
1－Basic; 2－LAN/GPIB interface;
4－Multiplexer plate with the model and LAN/GPIB interface.
Application examples:
DM3061－6½ DM3000 series, Basic type.
DM3062－6½ DM3000 series, Basic type, equipped with LAN/GPIB module.
DM3064－6½ DM3000 series, Basic type, equipped with LAN/GPIB and multiplexer
module.
DM3051－5¾ DM3000 series, Basic type.
DM3052－5¾ DM3000 series, Basic type, equipped with LAN/GPIB module.
DM3054－5¾ DM3000 series, Basic type, equipped with LAN/GPIB and multiplexer
module.
Service Guide for DM3000 Series
RIGOL
VII
RIGOL DM3000 Series Digital Multimeter is equipment designed for high-precision,
multifunction, automation measurements. The series includes 6½ digits multimeter,
with high-speed data acquisition, automatic measurements, multiplexer, mathematical
operations, and flexible user sensor configurations etc.
DM3000 has a high-resolution monochrome LCD display system for simple waveform
display and record. The concise and user-friendly layout of the front panel has a
keyboard, and back lighted functional buttons, embedded with operating instructions
makes the instrument more flexible, and capable. Interface includes RS-232, USB,
LAN, and GPIB for disk storage and print. It supports virtual terminal display and
control, and remote network access.
With the performance and characteristics given below, you will understand how
DM3000 can satisfy your measurement requirements.
Resolving Resolution: > 6½ digits and 2,400,000 Count;
50kSa/s data sampling rate can be used, such as the rapidly changing
high-precision audio waveform data. Meanwhile waveform can be displayed on
LCD Screen;
24 measurement functions
DC voltage and current, AC voltage and current, two-wire and four-wire
resistance, capacitance, continuity test, diode test, frequency, cycle, ratio
measurements, sensor measurement, and so on;
Math include: maximum, minimum, limit, average, dBm, dB;
Data acquisition functions include: data records, inspection, and automatic
measurement;
True RMS AC voltage and current measurement;
16-Channels multiplexer functional measurement and control software (optional);
DC voltage >10GΩ input impedance to achieve the range of 48V (± 24V);
10 groups measuring set-up storage and unlimited setup through PC interface;
256 x 64 pixel monochrome LCD;
I/O: RS-232, USB, LAN and GPIB;
Built-in USB Host to support USB disk and USB printer;
Simple, convenient and flexible control software: Ultralogger and Ultrasensor.
Service Guide for DM3000 Series
RIGOL
VIII
Structure of This Document
Chapter 1 Performance Specifications
List the Performance specifications of DM3000 series.
Chapter 2 Quick Start
Help users to be familiar with the operating skills of DM3000.
Chapter 3 Performance Test
Introduce how to test the performance so as to know about its current state of
DM3000 well.
Chapter 4 Calibration
Guide you how to calibrate DM3000.
Chapter 5 Disassembly and assembly
Introduce how to disassemble and assemble DM3000 in order to know about more
details about its structure.
Chapter 6 Troubleshooting and General Care
Provide the methods of troubleshooting and general care.
Chapter 7 Service and Support
Information about Service and Support and the like.
Service Guide for DM3000 Series
RIGOL
IX
Contents
General-Purpose Multimeter ......................................................................... VI
Chapter 1 Performance & Specifications .............................................. 1-1
Mechanical Specifications ............................................................................ 1-2
Technical Specifications .............................................................................. 1-3
Specifications of DM306x ..................................................................... 1-3
Specifications of DM305x ................................................................... 1-13
Chapter 2 Quick Start ........................................................................... 2-1
General Inspection ..................................................................................... 2-2
Inspect the Instrument ........................................................................ 2-2
Check the List of Accessories ................................................................ 2-2
Handle Adjustment ..................................................................................... 2-3
Introduction of Front Panel ......................................................................... 2-4
Introduction of Rear Panel .......................................................................... 2-5
Introduction of User Interface ..................................................................... 2-5
Chapter 3 Performance Test ................................................................. 3-1
Equipments for Test ................................................................................... 3-2
Performance Test ....................................................................................... 3-3
Quick Test ........................................................................................... 3-3
Common Test ...................................................................................... 3-3
Optional AC Voltage Test .................................................................... 3-14
Optional AC Current Test .................................................................... 3-15
Capacitance Test ................................................................................ 3-16
Software Connection Test ......................................................................... 3-17
Chapter 4 Calibration ............................................................................ 4-1
Calibration Security Code ............................................................................ 4-2
Calibration Notice ....................................................................................... 4-3
DC Voltage, DC Current, Resistance Calibration ............................................ 4-4
AC Voltage and AC Current Calibration ......................................................... 4-6
Frequency Calibration ................................................................................. 4-8
Capacitance Calibration ............................................................................... 4-8
Chapter 5 Disassembly & Assembly ...................................................... 5-1
The Disassembly and Assembly Notice ......................................................... 5-2
The 3D View of DM3000 ............................................................................. 5-3
Service Guide for DM3000 Series
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X
To Disassemble and Assemble .................................................................... 5-5
Handle, Rear Panel and Metallic Shell .......................................................... 5-5
To Disassemble and Assemble .................................................................... 5-8
Fuse Socket, BNC Module and GPIB PCB ..................................................... 5-8
To Disassemble and Assemble ................................................................... 5-11
Filter Board and Transformer ..................................................................... 5-11
To Disassemble and Assemble ................................................................... 5-12
Front Panel and LCD ................................................................................. 5-12
To Disassemble and Assemble ................................................................... 5-13
Multiplexer Board, Motherboard and Key Board PCB .................................... 5-13
Chapter 6 Troubleshooting & Maintenance ........................................... 6-1
DM3000 Principle Introduction .................................................................... 6-2
Troubleshooting ......................................................................................... 6-4
Common Troubleshooting .................................................................... 6-4
Components Inspection ....................................................................... 6-7
Replaceable Part List .......................................................................... 6-10
Maintenance and Cleaning ......................................................................... 6-12
Chapter 7 Service & Support ................................................................. 7-1
Warranty ................................................................................................... 7-1
Contact Us ................................................................................................ 7-3
Index ................................................................................................................ 1
Service Guide for DM3000 Series
RIGOL
XI
Figure Contents
Figure 1-1 Dimension of DM3000 ................................................................ 1-2
Figure 2-1 The Method of Adjusting Handle ................................................. 2-3
Figure 2-2 Adjustable Positions for Handle ................................................... 2-3
Figure 2-3 Sketch map of Front Panel ......................................................... 2-4
Figure 2-4 Sketch map of Rear Panel .......................................................... 2-5
Figure 2-5 Sketch map of User Interface ..................................................... 2-5
Figure 3-1 ................................................................................................. 3-4
Figure 3-2 UltraLogger is successfully connected ....................................... 3-17
Figure 3-3 UltraSensor is successfully connected ........................................ 3-18
Figure 4-1 The Input HI-LO and Sense/Ref HI-LO Terminals in Short Circuit... 4-4
Figure 5-1 The Exterior 3D View of DM3000 ................................................ 5-3
Figure 5-2 The Interior 3D View of DM3000 ................................................ 5-4
Figure 5-3 The Schematic of Disassembling and Assembling Handle .............. 5-5
Figure 5-4 The Schematic of Disassembling and Assembling Rear Panel ........ 5-6
Figure 5-5 The Schematic of Disassembling and Assembling Metallic Shell ..... 5-7
Figure 5-6 The Schematic of Disassembling and Assembling Fuse Socket ...... 5-8
Figure 5-7 The Schematic of Disassembling and Assembling BNC Module .... 5-9
Figure 5-8 The Schematic of Disassembling and Assembling GPIB PCB ...... 5-10
Figure 5-9 The Schematic of Disassembling and Assembling ....................... 5-11
Figure 5-10 The Schematic of Disassembling and Assembling ..................... 5-12
Figure 5-11 The Schematic of Disassembling and Assembling Multiplexer Board
....................................................................................................... 5-13
Figure 5-12 The Schematic of Disassembling and Assembling Motherborad . 5-14
Figure 5-13 The Schematic of Disassembling and Assembling Key Board PCB
....................................................................................................... 5-15
Figure 6-1 Circuit Diagram of DM3000 series ............................................... 6-2
Figure 6-2 The Sketch Map of Fuse Replacement ......................................... 6-4
Figure 6-3 Transformer Sketch Map ............................................................ 6-7
Service Guide for DM3000 Series
RIGOL
XII
Table Contents
Table 3-1 Recommended Equipments ......................................................... 3-2
Table 3-2 Zero Offset of the Standard Equipment (DM306X) ........................ 3-5
Table 3-3 Zero Offset of the Standard Equipment (DM305X) ........................ 3-6
Table 3-4 DC Gain Error of the Standard Equipment (DM306X) ..................... 3-7
Table 3-5 DC Gain Error of the Standard Equipment (DM305X) ..................... 3-8
Table 3-6 AC Voltage Gain Error of the standard equipment (DM306X) .......... 3-9
Table 3-7 AC Voltage Gain Error of the Standard Equipment (DM305X) ....... 3-10
Table 3-8 AC Current Gain Error of the Standard Equipment (DM306X) ....... 3-11
Table 3-9 AC Current Gain Error of the Standard Equipment (DM305X) ....... 3-12
Table 3-10 Frequency Gain Error of the Standard Equipment (DM306X) ...... 3-13
Table 3-11 Frequency Gain Error of the Standard Equipment (DM305X) ...... 3-13
Table 3-12 Accessional AC Voltage Test Error (DM306x) ............................. 3-14
Table 3-13 Accessional AC Voltage Test Error（DM305X） .......................... 3-14
Table 3-14 Accessional AC Current Test Error（DM306X） ......................... 3-15
Table 3-15 Accessional AC Current Test Error（DM305X） ......................... 3-15
Table 3-16 Capacitance Test Error of the Standard Equipment (DM306X) .... 3-16
Table 3-17 Capacitance Test Error of the Standard Equipment (DM305X) .... 3-16
Table 4-1 DC Zero and DC Gain Calibration Input Value (DM306X) ................ 4-5
Table 4-2 DC Zero and DC Gain Calibration Input Value (DM305X) ................ 4-5
Table 4-3 AC Calibration Input Value .......................................................... 4-7
Table 4-4 Capacitance Calibration input Value ............................................. 4-8
Table 6-1 Check Table of Voltages among Windings of Transformer .............. 6-8
Table 6-2 Replaceable Part List ................................................................ 6-11
Service Guide for DM3000 Series
RIGOL
1-1
Chapter 1 Performance & Specifications
This chapter covers the following topics:
Mechanical Specifications
Technical Specifications
Specifications of DM306x
Specifications of DM305x
Service Guide for DM3000 Series
RIGOL
1-2
Mechanical Specifications
Weight: 2.5 kg
Dimension: W× H× D＝231.6mm× 107mm× 290.5mm
Figure 1-1 Dimension of DM3000
Service Guide for DM3000 Series
RIGOL
1-3
Function
Range
[3]
Test Current
or Burden
Voltage
24 Hour
[2]
Tcal± 1℃
90 Day
Tcal± 5℃
1 Year
Tcal± 5℃
Temperature
Coefficient
0 ℃ to
(Tcal–5 ℃)
(Tcal + 5 ℃) to
55 ℃
DC
0.0030+0.00
0.0065+0.00
0.0085+0.00
0.0020+0.00
0.0060+0.00
0.0078+0.00
0.0020+0.00
0.0065+0.00
0.0085+0.00
0.0020+0.00
0.0082+0.00
0.0100+0.00
[5]
0.0025+0.00
0.0095+0.00
0.0110+0.00
DC
<0.03V
0.010+0.014
0.060+0.035
0.076+0.050
<0.3V
0.010+0.002
0.058+0.006
0.075+0.006
<0.3V
0.020+0.002
0.065+0.005
0.081+0.005
<0.3V
0.020+0.016
0.065+0.030
0.073+0.030
[7]
<0.6V
0.300+0.020
0.330+0.020
0.330+0.020
[4
1mA
0.0106+0.00
0.018+0.011
0.020+0.011
1mA
0.0022+0.00
0.010+0.002
0.015+0.002
100uA
0.0020+0.00
0.010+0.001
0.015+0.001
10uA
0.0020+0.00
0.010+0.001
0.015+0.001
2uA
0.0020+0.00
0.010+0.001
0.015+0.001
200nA
0.0112+0.00
0.0550+0.00
0.056+0.006
200nA||10M
0.300+0.010
0.800+0.011
0.800+0.015
Diode Test
[6]
1mA
0.005+0.050
0.008+0.050
0.010+0.050
1mA
0.005+0.050
0.008+0.050
0.010+0.050
Technical Specifications
Specifications of DM306x
DC Characteristics
Accuracy Specifications (% of reading + % of range)
[1]
Notes：
[1] Specifications are for 60 minute warm–up and set reading resolution as 6½ .
[2] Relative to calibration standards.
Service Guide for DM3000 Series
RIGOL
1-4
[3] 20% over range on all ranges, except DCV 1000V, ACV 750V, DCI and ACI 10A range.
[4] Specifications are for 4–wire resistance function, or 2–wire resistance using Math Null. Without
Math Null, add 0.2 Ω additional errors in 2–wire resistance function.
[5] For each additional volt over ± 500 VDC add 0.02 mV of error.
[6] Accuracy specifications are for the voltage measured at the input terminals only. 1mA test
current is typical. Variation in the current source will create some variation in the voltage drop
across a diode junction.
[7] As continuous current higher than 7A DC or AC RMS, 30 seconds needs to be off after connecting
30s.
Settling Considerations:
Setting time of readings is affected by source impedance, cable dielectric characteristics and input
signal changes. Generally, the Settling time of Common readings is about 1.5s when Low source
impedance less than 1kΩ.
Service Guide for DM3000 Series
RIGOL
1-5
Function
Range
[3]
Frequency
Range
24 Hour
[2]
Tcal± 1℃
90 Day
Tcal± 5℃
1 Year
Tcal± 5℃
Temperature
Coefficient
0℃ to (Tcal–5 ℃)
(Tcal + 5 ℃) to 55 ℃
True
RMS AC
Voltage
[4]
200.000m
V
3Hz-10Hz
5.0+0.05
5.0+0.07
5.1+0.07
0.15+0.006
10Hz-40Hz
0.53+0.05
0.57+0.06
0.60+0.07
0.035+0.004
40Hz-20kHz
0.08++0.05
0.14+0.06
0.15+0.07
0.005+0.004
20kHz-50kHz
0.10+0.05
0.14+0.06
0.16+0.05
0.011+0.005
50kHz-100kHz
0.5+0.10
0.6+0.10
0.60+0.10
0.06+0.008
100kHz-300kHz
4.0+0.80
4.5+0.80
4.50+0.80
0.2+0.02
2.00000V
to
750.00V
3Hz-10Hz
5.0+0.05
5.0+0.07
5.10+0.07
0.15+0.006
10Hz-40Hz
0.35+0.05
0.37+0.06
0.38+0.07
0.035+0.003
40Hz-20kHz
0.08+0.05
0.10+0.06
0.11+0.07
0.005+0.003
20kHz-50kHz
0.40+0.05
0.40+0.06
0.40+0.07
0.011+0.005
50kHz-100kHz
0.55+0.10
0.60+0.10
0.60+0.10
0.07+0.008
100kHz-300kHz
4.0+0.80
4.0+0.80
4.00+0.80
0.2+0.02
True
RMS AC
Current
[
20.0000m
A
3Hz-10Hz
5.0+0.05
5.1+0.07
5.1+0.07
0.15+0.006
10Hz-40Hz
0.55+0.05
0.61+0.06
0.64+0.07
0.035+0.006
40Hz-5kHz
0.13+0.05
0.18+0.06
0.22+0.07
0.015+0.006
5kHz-10kHz
0.20+0.25
0.2+0.25
0.22+0.25
0.03+0.006
200.000m
A
3Hz-10Hz
5.0+0.05
5.1+0.07
5.1+0.07
0.15+0.006
10Hz-40Hz
0.55+0.05
0.62+0.06
0.64+0.07
0.035+0.006
40Hz-5kHz
0.13+0.05
0.20+0.06
0.22+0.07
0.015+0.006
5kHz-10kHz
0.20+0.25
0.20+0.25
0.22+0.25
0.03+0.006
1.00000A
3Hz-10Hz
5.0+0.16
5.1+0.25
5.2+0. 27
0.24+0.047
10Hz-40Hz
0.64+0.16
0.70+0.25
0.71+0.27
0.035+0.047
40Hz-5kHz
0.22+0.16
0.28+0.25
0.29+0.27
0.015+0.047
5kHz-10kHz
0.35+0.2
0.35+0.4
0.35+0.4
0.03+0.047
10.0000A
[
7]
3Hz-1Hz
5.3+0.05
5.40+0.07
5.4+0.07
0.24+0.006
10Hz-40Hz
0.8+0.05
0.9+0.06
0.9+0.07
0.035+0.006
40Hz-5kHz
0.40+0.06
0.42+0.06
0.43+0.07
0.015+0.006
5kHz-10kHz
0.42+0.1
0.42+0.1
0.43+0.1
0.03+0.006
AC Characteristics
Accuracy Specifications (% of reading + % of range)
[1]
Notes：
[1] Specifications are for 60 minute warm–up and set reading resolution as 5½ .
[2] Relative to calibration standards.
Service Guide for DM3000 Series
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1-6
[3] 20% over range on all ranges, except DCV 1000V, ACV 750V, DCI and ACI 10A range.
[4] Specifications are for sine wave input >5% of range. For inputs from 1% to 5% of range and
<50 kHz, add 0.1% of range additional error. For 50 kHz to 100 kHz, add 0.13% of range.
750 VAC range is limited to 8x107 Volt-Hz.
[5] Specifications are for sine wave input >5% of range. Add 0.1% of the range for the sine wave
input is 1%~5% of the range.
[6] Generally 30% of reading error existing at 100 kHz.
[7] As continuous current higher than 7A DC or AC RMS, 30 seconds needs to be off after connecting
30s.
Low Frequency Characteristics
Following three filter settings are available:
Slow: 3Hz~300 kHz
Mid: 20Hz~300 kHz
Fast: 200Hz~300 kHz
Measurement Considerations
Frequencies greater than upper settings are considered with no additional errors.
Settling Considerations
Applying >300VRMS (or >2ARMS) will cause self-heating in signal-conditioning components. These
errors are included in the instrument specifications. Internal temperature changes due to
self-heating may cause additional error on lower ac voltage ranges. The additional error will be less
than 0.02% of reading and will generally dissipate within a few minutes.
Service Guide for DM3000 Series
RIGOL
1-7
Function
Rang
e[3
Frequency
Range
24 Hour
[2]
Tcal± 1℃
90 Day
Tcal± 5℃
1 Year
Tcal± 5℃
Temperature
Coefficient
0 ℃ to (Tcal–5 ℃)
(Tcal + 5 ℃) to 55 ℃
Frequency
Period
200mV
to
750V
[3]
3Hz-5Hz
0.07
0.07
0.07
0.005
5Hz-10Hz
0.04
0.04
0.04
0.005
10Hz-40Hz
0.02
0.02
0.02
0.001
40Hz-300kHz
0.005
0.006
0.007
0.001
20mA
to 10A
[4]
3Hz-5Hz
0.07
0.07
0.07
0.005
5Hz-10Hz
0.04
0.04
0.04
0.005
10Hz-10kHz
0.005
0.006
0.007
0.001
Frequency and Period Characteristics
Accuracy Specifications (% of reading)
[1]
Notes：
[1] Specifications are for 60 minute warm–up and set reading resolution as 6½ .
[2] Relative to calibration standards.
[3] For AC input voltages 10% to 120% of range except special mark. 750V range is limited to
750VRMS. 200mV range is specified as full scale or greater inputs. For inputs from 20mV to
200mV, multiply total % of reading error by 10.
[4] For the 20mA, 200mA, 10A ranges, the AC input current from 10% to 120% of range except
special mark. 1A range is specified as the AC input current from 50% to 120% of range.
Measurement Considerations
Errors are brought within all the frequency counters when measuring low–voltage, low–frequency
signals. Shielding inputs could redound to reduce measuring errors brought from external noise.
Settling Considerations
Errors will occur when attempting to measure the frequency or period of an input following a dc
offset voltage change. The input blocking RC time constant must be allowed to fully settle (up to 1
sec) before the most accurate measurements are possible.
Service Guide for DM3000 Series
RIGOL
1-8
Function
Range[2
Test Current
1 Year
Tcal± 5℃
Temperature
Coefficient
0 ℃ to (Tcal–5 ℃) (Tcal+ 5 ℃)
to 55 ℃
Capacitance
2.000nF
200nA
2 + 2.5
0.05+0.05
20.00nF
1uA
1 + 0.5
0.05+0.01
200.0nF
10uA
1 + 0.5
0.01+0.01
2.000uF
100uA
1 + 0.5
0.01+0.01
20.00uF
1mA
1 + 0.5
0.01+0.01
Capacitance Characteristics
Accuracy Specifications (% of reading + % of range)
Notes：
[1] Specifications are for 60 minute warm–up using Math Null. Additional errors may occur for
non–film capacitors.
[2] Specifications are for 1% to 120% of range on the 2nF range and 10% to 120% of range on all
other ranges.
[1]
Service Guide for DM3000 Series
RIGOL
1-9
Measuring Characteristics
DC Voltage
Measurement Method: ΣΔ A/D conversion
Input Resistance:
200mV, 2V, 20V ranges Selectable 10MΩ ± 2% or >10GΩ
200V, 1000V ranges 10MΩ ± 2%
Resistance
Measurement Method: 4-wire or 2-wire.
Current source referenced to LO input.
Open-circuit Voltage: Limit less than 7V.
Max. Lead Resistance: 10% of range per lead for 200Ω, 1kΩ range. 1kΩ per lead
(4-wire ohms) on all other ranges.
Input Protection: 1000V, all ranges.
DC Current
Shunt Resistor: 0.025Ω for 1A, 10A
1.025Ω for 200mA
11.025Ω for 2mA and 20mA
Input Protection: Externally accessible 10A, 250V fuse
Internal 12A, 250V fuse
Continuity / Diode Test
Measurement Method: 1mA ± 0.2% test current, Limit in <7V
Response Time: 25 samples / sec
Continuity Threshold: Adjustable from 1Ω to 2000Ω
Input Protection: 1000V
True RMS AC Voltage
Measurement Method: AC-coupled True RMS – measures the ac component of input
with up to 400Vdc of bias on any range.
Input Impedance: 1MΩ ± 2%, in parallel with <100pF
Input Protection: 750VRMS all ranges
True RMS AC Current
Measurement Method: Direct coupled to the fuse and shunt. AC-coupled True RMS
measurement (measures the ac component only)
Service Guide for DM3000 Series
RIGOL
1-10
Max. Input: The DC + AC current peak value <300% of the range. The RMS
current including DC current <10A.
Shunt Resistor: 0.025Ω for 1A, 10A,
1.025Ω for 200mA,
11.025Ω for 20mA
Input Protection: Externally accessible 10A, 250V fuse
Internal 12A, 250V fuse
Frequency and Period
Measurement Method: Reciprocal-counting technique. AC-coupled input using the ac
voltage measurement function.
Input Impedance (Voltage Signal):1MΩ ± 2%, in parallel with <100pF
Shunt Resistor (Current Signal): 0.025Ω for 1A, 10A,
1.025Ω for 200mA,
11.025Ω for 20mA
Input Protection: 750VRMS all ranges;
Externally accessible 10A, 250V fuse
Internal 12A, 250V fuse
Capacitance
Measurement Method: Current input with measurement of resulting ramp.
Connection Type: 2-wire
Triggering and Memory
Samples per Trigger: 1 to 2,000,000
Trigger Delay: 0 to 3600 sec
Input Level: TTL compatible (High level when left trigger input open)
Trigger Condition: Selectable Rising, Falling, Low-level, High-level.
Input Impendence: >20kΩ, in parallel with 400pF, AC-coupled
Delay: <1μs
Min Pulsewidth: 1μs
VMC Output:
Level: TTL compatible (Input to ≥ 1kΩ load)
Output Polarity: Selectable Positive, Negative
Output Impendence: 200Ω, typical
Nonvolatile Memory: 512K readings
Volatile Memory: 2M readings
Service Guide for DM3000 Series
RIGOL
1-11
!
Rear panel multiplexer function (only for the model equipped with multiplexer module)
Including the model of multiplexer card, the voltage limit of LO relative to safe ground
falls to 200Vpeak (Max).
Channel: 12 voltages, 4 current, additional protections.
Measurement Type：2-wire resistance, capacitance, DC voltage, DC current, AC voltage, AC
current, period, diode and frequency.
Work Characteristics：The precision of performance is consistent with the value measured from
front panel. The switch time of multiplexer card is 50ms; the switch time of auto measurement is
600ms. (4½ digits)
Input Characteristic: Difference input voltage is 150Vpeak(Max); the isolated voltage in
interchannel is 150Vpeak(Max)，the current terminal is input 1Apeak(Max), channel isolation > 60dB
(@10KHz)，the voltage of all the terminal relative to safe ground is 150Vpeak(Max).
Input Protection: 2A restore the fuse in current channel, 250V limit voltage.
500mA melt the fuse in voltage channel with multiplexer card.
Real-time Clock
Precision: 1min/month (Environment Temperature >0℃)
Clock battery Life: 2 years
Sensor Measurement
Voltage, current, resistance and frequency random sensor
Math Functions
Null, Min/Max/Average, dBm, dB, Limit Test (with TTL output)
Other Functions
Reading Hold, Ratio Measurement
High-speed Sampling
50kSa/s (In Datalog function)
Reading Resolution
2,400,000 Count, >6½ digits
USB I/O Interface
USB Host, USB Device interface. It can support U-disk and USB printer.
Service Guide for DM3000 Series
RIGOL
1-12
Other I/O Interface
RS-232, GPIB (Selectable) support for SCPI command, LAN (Selectable)
General Specifications
Display: 256 x 64 pixels LCD to support multi-display, menu, multi-
language help and waveform display.
Data Acquisition and Virtual: Support Microsoft® Windows 98/Me, Windows 2000/XP
Power Supply: 100V/ 120V/ 220V/ 240V ± 10%
Power Line Frequency: 45Hz to 66Hz
Power Consumption: 20VA peak
Operating Environment: Full accuracy for 0℃ to 55℃, 95% R.H. at 40℃ non-condensing
Storage Temperature: -20℃ to 70℃
Safety: Measurement CAT II 300V, CAT I 1000V. Pollution degree 1.
Vibration & Shock: Mil-T-28800E, Type III, Class 5 (Sine Only)
Weight: 2.5kg
Size (H x W x D): 107.0mm x 231.6mm x 290.5m
Service Guide for DM3000 Series
RIGOL
1-13
Function
Range
[2]
Test Current
or Burden
Voltage
Input
Impedance
1 Year
23℃±5℃
Temperature
Coefficient
0 ℃ to 18 ℃
28 ℃ to 55 ℃
DC
Voltage
400.000mV
10MΩ or>10GΩ
0.025 + 0.008
0.0015+0.0005
4.00000V
10MΩ or>10GΩ
0.025 + 0.006
0.0010+0.0005
40.0000V
10MΩ
0.025 + 0.006
0.0020+0.0005
400.000V
10MΩ
0.030 + 0.006
0.0020+0.0005
1000.00V
[4]
10MΩ
0.030 + 0.005
0.0015+0.0005
DC
Current
2.00000mA
<0.03V
0.050 + 0.070
0.0040+0.0070
20.0000mA
<0.3V
0.050 + 0.008
0.0040+0.0007
200.000mA
<0.3V
0.050 + 0.009
0.0040+0.0008
1.00000A
<0.3V
0.100 + 0.070
0.0100+0.0062
10.0000A
[5]
<0.6V
0.200 + 0.007
0.0100+0.0007
Resistance
[
400.000Ω
1mA 0.050 + 0.010
0.0030+0.0005
4.00000kΩ
100uA
0.015 + 0.006
0.0030+0.0005
40.0000kΩ
10uA 0.015 + 0.006
0.0030+0.0005
400.000kΩ
2uA 0.030 + 0.007
0.0030+0.0005
4.00000MΩ
200nA
0.060 + 0.010
0.0030+0.0005
100.000MΩ
200nA ||10MΩ
2.00 + 0.005
0.1500+0.0005
Diode Test
2.4000V
[6]
1mA 0.05 + 0.010
0.0050+0.0005
Continuity
2000Ω
1mA 0.05 + 0.010
0.0050+0.0005
Specifications of DM305x
DC Characteristics
Accuracy Specifications (% of reading + % of range)
[1]
Notes：
[1] Specifications are for 60 minute warm–up and set reading resolution as 5¾ and calibration
temperature between 18 ℃ and 28 ℃.
[2] 20% over range on all ranges except DCV 1000V, ACV 750V, DCI and ACI 10A range.
[3] Specifications are for 4–wire resistance function or 2–wire resistance using Math Null. Without
Math Null, add 0.2 Ω additional errors in 2–wire resistance function.
[4] For each additional volt over ± 500 VDC add 0.02 mV of error.
[5] For current terminal, > 7A DC or ACRMS for 30 seconds ON and 30 seconds OFF.
[6] Accuracy specifications are for the voltage measured at the input terminals only. 1 mA test
Service Guide for DM3000 Series
RIGOL
1-14
current is typical.
Variation in the current source will create some variation in the voltage drop across a diode
junction.
Settling Considerations
Reading settling times are affected by source impedance, cable dielectric characteristics, and input
signal changes. Typically, settling time is 1.5s when source impedance less than 1kΩ.
Service Guide for DM3000 Series
RIGOL
1-15
Function
Range
[2]
Frequency Range
1 Year
23℃±5℃
Temperature
Coefficient
0 ℃ to 18 ℃
28 ℃ to 55 ℃
True RMS AC
Voltage
[3]
200.000mV
10Hz-45Hz
1.0 + 0.1
0.02+0.02
45Hz-20kHz
0.2 + 0.1
0.02+0.02
20kHz-50kHz
2.0 + 0.2
0.02+0.02
50kHz-100kHz
4.0 + 0.2
0.02+0.02
2V to
750.00V
10Hz-45Hz
1.0 + 0.1
0.02+0.02
45Hz-20kHz
0.2 + 0.1
0.02+0.02
20kHz-50kHz
1.0 + 0.1
0.02+0.02
50kHz-100kHz
2.0 + 0.2
0.02+0.02
True RMS AC
Current
[4, 6]
20.0000mA
10Hz-45Hz
1.5+0.1
0.02+0.02
45Hz-2kHz
0.5+0.1
0.02+0.02
2kHz-10kHz
2.0+0.2
0.02+0.02
200.000mA
10Hz-45Hz
1.5+0.1
0.02+0.02
45Hz-2kHz
0.5+0.1
0.02+0.02
2kHz-10kHz
2.0+0.2
0.02+0.02
1.00000A
10Hz-45Hz
1.5+0.5
0.02+0.05
45Hz-2kHz
0.5+0.5
0.02+0.05
2kHz-10kHz
2.0+0.5
0.02+0.05
10.0000A[6]
10Hz-45Hz
1.5+0.1
0.02+0.02
45Hz-2kHz
0.5+0.1
0.02+0.02
2kHz-5kHz
2.0+0.2
0.02+0.02
AC Characteristics
Accuracy Specifications (% of reading + % of range)
[1]
Notes：
[1] Specifications are for 60 minute warm–up and set reading resolution as 5½ and calibration
temperature between 18 ℃ and 28 ℃.
[2] 20% over range on all ranges, except DCV 1000V, ACV 750V, DCI and ACI 10A range.
[3] Specifications are for sine wave input >5% of range. For inputs from 1% to 5% of range and
<50 kHz, add 0.1% of range additional error. For 50 kHz to 100 kHz, add 0.13% of range.
750Vac range limited to 100 kHz or 8x107 Volt-Hz.
[4] Specifications are for sine wave input >5% of range. Add 0.1% of the range for the sine wave
input is 1%~5% of the range.
[5] For current terminal, > 7A DC or ACRMS for 30 seconds ON and 30 seconds OFF.
Service Guide for DM3000 Series
RIGOL
1-16
[6] Typically 30% of reading error at 100 kHz.
Low Frequency Performance
Three filter settings are available:
Slow: 3Hz~300kHz
Mid: 20Hz~300kHz
Fast: 200Hz~300kHz
Measurement Considerations
Frequencies greater than upper filter settings are considered with no additional errors.
Settling Time Considerations
Applying >300VRMS (or >1ARMS) will cause self-heating in signal-conditioning components. These
errors are included in the instrument specifications. Internal temperature changes due to
self-heating may cause additional error on lower ac voltage ranges. The additional error will be less
than 0.02% of reading and will generally dissipate within a few minutes.
Service Guide for DM3000 Series
RIGOL
1-17
Function
Range
Frequency
Range
1 Year
23℃±5℃
Temperature
Coefficient
0 ℃ to 18 ℃
28 ℃ to 55 ℃
Frequency
Period
200mV
to 750V
[2]
3Hz-5Hz
0.10
0.005
5Hz-10Hz
0.07
0.005
10Hz-40Hz
0.02
0.005
40Hz-300kHz
0.02
0.005
20mA to10A
[3]
3Hz-5Hz
0.10
0.005
5Hz-10Hz
0.07
0.005
10Hz-10kHz
0.02
0.005
Frequency and Period Characteristics
Accuracy Specifications (% of reading)
[1]
Notes：
[1] Specifications are for 60 minute warm–up.
[2] For AC input voltages 10% to 120% of range except where noted. 750V range limited to
750VRMS. 200mV range specifications are for full scale or greater inputs. For inputs from 20mV
to 200mV, multiply total % of reading error by 10.
[3] For the 20mA, 200mA, 10A ranges, the AC input current from 10% to 120% of range except
where noted. For 1A range, the AC input current from 50% to 120% of range except where
noted.
Measurement Considerations
All frequency counters are susceptible to error when measuring low–voltage, low–frequency signals.
Shielding inputs from external noise pickup is critical for minimizing measurement errors.
Settling Considerations
Errors will occur when attempting to measure the frequency or period of an input following a DC
offset voltage change. The input blocking RC time constant must be allowed to fully settle (up to 1
sec) before the most accurate measurements are possible.
Service Guide for DM3000 Series
RIGOL
1-18
Function
Range
[2]
Test Current
1 Year
23℃±5℃
0 ℃ to 18 ℃
28 ℃ to 55 ℃
Capacitance
4.000nF
1uA
2 + 2.5
0.05+0.05
40.00nF
10uA
1 + 0.5
0.05+0.01
400.0nF
10uA
1 + 0.5
0.01+0.01
4.000uF
1mA
1 + 0.5
0.01+0.01
40.00uF
1mA
1 + 0.5
0.01+0.01
200.0uF
1mA
1 + 0.5
0.01+0.01
Capacitance Characteristics
Accuracy Specifications (% of reading + % of range)
[1]
Notes：
[1] Specifications are for 60 minute warm–up using Math Null. Additional errors may occur for
non–film capacitors.
[2] Specifications are for 1% to 120% of range on the 4nF range and 10% to 120% of range on all
other ranges.
Service Guide for DM3000 Series
RIGOL
1-19
Measuring Characteristics
DC Voltage
Measurement Method: Sigma Delta A-to-D converter.
Input Resistance:
400mV, 4V ranges Selectable 10MΩ ± 2% or >10GΩ
40V, 400V, 1000V ranges 10MΩ ± 2%
Resistance
Measurement Method: Selectable 4-wire or 2-wire.
Current source referenced to LO input.
Open-circuit Voltage: Limit in <7V.
Max. Lead Resistance: 10% of range per lead for 400Ω, 1kΩ per lead
(4-wire ohms) on all other ranges.
Input Protection: 1000V on all ranges.
DC Current
Shunt Resistor: 0.025Ω for 1A, 10A
1.025Ω for 200mA
11.025Ω for 2mA, 20mA
Input Protection: Externally accessible 10A, 250V fuse
Internal 12A, 250V fuse
Continuity/Diode Test
Measurement Method: 1mA ± 0.2% test current, Limit in <8V
Response Time: 25 samples / sec
Continuity Threshold: Adjustable from 1Ω to 2000Ω
Input Protection: 1000V
True RMS AC Voltage
Measurement Method: AC coupled true-RMS-measure the ac component of input with
up to 400Vdc of bias on any range
Input Impedance: 1MΩ ± 2%, in parallel with 100pF
Input Protection: 750VRMS all ranges
True RMS AC Current
Measurement Method: Direct coupled to the fuse and shunt. AC coupled true RMS
Service Guide for DM3000 Series
RIGOL
1-20
measurement (measures the ac component only)
Max. Input: The DC + AC current peak value <300% of the range. The RMS
current including DC current <10A
Shunt Resistor: 0.025Ω for 1A, 10A,
1.025Ω for 200mA,
11.025Ω for 20mA
Input Protection: Externally accessible 10A, 250V fuse
Internal 12A, 250V fuse
Frequency and Period
Measurement Method: Reciprocal-counting technique. AC-coupled input using the ac
voltage measurement function.
Input Impedance (Voltage Signal):1MΩ ± 2%, in parallel with <150pF
Shunt Resistor (Current Signal): 0.025Ω for 1A, 10A,
1.025Ω for 200mA,
11.025Ω for 20mA
Input Protection: 750VRMS all ranges;
Externally accessible 10A, 250V fuse
Internal 12A, 250V fuse
Capacitance
Measurement Method: Current input with measurement of resulting ramp.
Connection Type: 2-wire
Triggering and Memory
Samples per Trigger: 1 to 2,000,000
Trigger Delay: 0 to 3600 sec
Input Level: TTL compatible (High level when left trigger input open)
Trigger Condition: Selectable Rising, Falling, Low-level, High-level.
Input Impendence: >20kΩ, in parallel with 400pF, AC-coupled
Delay: <1μs
Min Pulse width: 1μs
VMC Output:
Level: TTL compatible (Input to ≥ 1kΩ load)
Output Polarity: Selectable Positive, Negative
Output Impendence: 200Ω, typical
Nonvolatile Memory: 512K readings
Volatile Memory: 2M readings
Service Guide for DM3000 Series
RIGOL
1-21
!
Rear panel multiplexer function (only for the model with multiplexer module)
Including the model with multiplexer card, the voltage limit of LO relative to safe ground
falls to 200Vpeak (Max).
Channel: 12 voltage, 4 current, additional protections.
Measurement Type：2-Wire resistance; Capacitance; DC Voltage; DC Current; AC Voltage; AC
Current; period; Diode and Frequency.
Work Characteristics：The precision of performance and front panel measurement is the same.
The switch time of multiplexer card is 50ms; the switch time of auto measurement is 600ms (4½ ).
Input Characteristic: different input voltage is 150Vpeak(Max); the isolated voltage between the
channels is 150Vpeak(Max)，the current end is input 1Apeak(Max), channel isolation > 60dB
(@10KHz)，the voltage of all the ends relative to safe ground is 150Vpeak(Max).
Input Protection: 2A restore the fuse in current channel, 250V limit voltage.
500mA melt the fuse in voltage channel with multiplexer card.
Real-time Clock
Precision: 1min/month (Environment Temperature >0℃)
Clock battery Life: 2 years
Sensor Measurement
Voltage, current, resistance and frequency random sensor
Math Functions
Null, Min/Max/Average, dBm, dB, Limit Test (with TTL output)
Other Functions
Reading Hold, Ratio Measurement
High-speed Sampling
50kSa/s (In Datalog function)
Reading Resolution
480,000 Count, >5¾ digits
USB I/O Interface
USB Host, USB Device interface. It can support U-disk and USB printer.
Service Guide for DM3000 Series
RIGOL
1-22
Other I/O Interface
RS-232, GPIB (Selectable) support for SCPI command, LAN (Selectable)
General Specifications
Display: 256 x 64 pixels LCD to support multi-display, menu, multi-
language help and waveform display.
Data Acquisition and Virtual: Support Microsoft® Windows 98/Me, Windows 2000/XP
Power Supply: 100V/ 120V/ 220V/ 240V ± 10%
Power Line Frequency: 45Hz to 66Hz
Power Consumption: 20VA peak
Operating Environment: Full accuracy for 0℃ to 55℃, 95% R.H. at 40℃ non-condensing
Storage Temperature: -20℃ to 70℃
Safety: Measurement CAT II 300V, CAT I 1000V. Pollution Degree 1.
Vibration & Shock: Mil-T-28800E, Type III, Class 5 (Sine Only)
Weight: 2.5kg
Size (H x W x D): 107.0mm x 231.6mm x 290.5m
Service Guide for DM3000 Series
RIGOL
2-1
Chapter 2 Quick Start
The chapter mainly covers the following topics:
General Inspection
Inspect the Instrument
Check the List of Accessories
Handle Adjustment
Introduction of Front Panel
Introduction of Rear Panel
Introduction of User Interface
Service Guide for DM3000 Series
RIGOL
2-2
General Inspection
Inspect the Instrument
Keep the damaged shipping container or cushioning material until the contents of the
shipment have been checked for completeness and the instrument has been checked
mechanically and electrically.
In case of any damage, or defect, or failure, notify the RIGOL Sales Representative.
If the shipping container is damaged, or the protective material shows signs of stress,
notify the carrier as well as your RIGOL sales office. Keep the shipping materials for
the carrier’s inspection.
RIGOL offices will arrange reparation or replacement at RIGOL’s option without
waiting for claim settlement.
Check the List of Accessories
Check your accessories whether accord with the list RIGOL provides. If not, please
contact RIGOL Sales Representative or sales office.
The list of accessories is given as follows:
A USB Data Wire
Two Test Lead Kits (red/black)
A Power Cord that fits the standard of destination country
A User’s Guide
Multiplexer Module (DM3064/3054)
A Ultralogger Software CD-ROM
Data Cables (DM3064/3054)
Testing Certification
Packing List
Service Guide for DM3000 Series
RIGOL
2-3
Handle Adjustment
To adjust the handle position of DM3000 Digital Multimeter, please grip the handle by
the sides and pull it outward. Then, rotate the handle to the desired position as shown
in figure 2-1, figure 2-2.
Figure 2-1 The Method of Adjusting Handle
Figure 2-2 Adjustable Positions for Handle
Service Guide for DM3000 Series
RIGOL
2-4
Gray Function Keys：
Measure DC Voltage
Measure DC Current
Measure Resistance
Measure Continuity
Measure Frequency
Measure Sensor
Measure AC Voltage
Measure AC Current
Measure Capacitance
Measure Diode
Logging Data
Set the Digit of Shown Data
Blue Function Keys:
Set the System parameters
Open Math operation
Set Trigger and Parameter
Save and Recall
Set the Utility Functions
View the built-in Help System
Direction Keys
Yellow District:
Trigger Control Keys
LCD Display
USB Host
On/Off
Gray District:
Measurement
Function Keys
Menu Operation
Keys
Blue District:
Function Selective
Keys
Current Input Terminal
Introduction of Front Panel
Figure 2-3 Sketch map of Front Panel
Service Guide for DM3000 Series
RIGOL
2-5
VMC
10/100
GPIB
(IEEE-488)
USB Device
RS-232
Power Fuse
AC Voltage
Selector
Current Input Fuse
Power Socket
Differential
Multiplexer Interface
Ext Trigger
Measurement
Data Display
Digits
resolving
index
Range
Current
Measurement
Local/Remote
Operation
Introduction of Rear Panel
Figure 2-4 Sketch map of Rear Panel
Introduction of User Interface
Service Guide for DM3000 Series
Figure 2-5 Sketch map of User Interface
RIGOL
3-1
Chapter 3 Performance Test
The chapter mainly covers the following topics:
Equipments for Test
Performance Test
Quick Test
Common Test
Optional AC Voltage Test
Optional AC Current Test
Capacitance Test
Software Connection Test
Service Guide for DM3000 Series
RIGOL
3-2
Test and
Calibration Item
Recommended
Equipment
Accuracy Requirement
Zero Calibration
None
4-terminals short using only copper
interconnections
DC Voltage
Fluke 5520A
<1/5 instrument 24 hour spec
Dc Current
Fluke 5520A
<1/5 instrument 24 hour spec
Resistance
Fluke 5520A
<1/5 instrument 24 hour spec
AC Voltage
Fluke 5520A
<1/5 instrument 24 hour spec
AC Current
Fluke 5520A
<1/5 instrument 24 hour spec
Frequency
Fluke 5520A
<1/5 instrument 24 hour spec
Capacitance
Fluke 5520A
<1/5 instrument 24 hour spec
Equipments for Test
The equipments in table 3-1 are recommended for testing DM3000 Series Digital
Multimeter (also for calibration). If the exact equipment is not available, use the
accuracy requirements shown to select substitute test equipments.
Table 3-1 Recommended Equipments
Test Consideration
In order to make all the test results more creditable, you are suggested to comply with
the following recommendations during testing:
1. Provide proper working voltage for equipments;
2. Ensure a stable test ambient with temperature between 18 °C and 28 °C;
3. Make sure the ambient relative humidity is less than 80%;
4. More than an hour’s warm-up should be done before testing or calibrating;
5. Use copper connector to minimize thermal offset voltage;
6. Use Shielded Twisted Pair with double insulating layer as short as possible to
minimize its resistance and noise.
Because DM3000 Series Digital Multimeter is a type of high accurate measurement
instrument, you must take special care to protect testing procedure against other
disturbs being produced.
Service Guide for DM3000 Series
RIGOL
3-3
NOTE
Quick test is not applicable for equipments with some abnormal components. The
equipment failing the quick performance check must be used after calibrating or
repairing.
NOTE
It is necessary to do the test again when exceed valid period since first successful
test. The equipment failing test should not be used until have been calibrated or
repaired.
Performance Test
You can select two different methods when testing by using the equipments listed in
table 3-1: Quick test and Common test. The detailed explanations are given below.
Quick Test
Quick test is an eclectic project which can either speed up test or ensure the test
results achieve to high confidence which contains parts of test items within Common
test, additional, “Q” is designated for its short (in Common test).
Common Test
Common test is recommend be done once you got the instrument so as to do a
complete evaluate for its performance. Generally, the test result is valid in 90-days. If
the performance test is performed in 24-hours after calibration, the valid period is
24-hours.
Service Guide for DM3000 Series
RIGOL
3-4
1. Zero Offset Test
When testing Zero Offset, firstly apply a 4-wire short across the Input HI-Lo and
Sense HI-Lo terminals (front terminals), then leave the current terminal open as
shown in figure 3-1:
Figure 3-1
The Input HI-LO and Sense/Ref HI-LO Terminals in Short Circuit
Next, perform the test items in table 3-2 or table 3-3 one by one, then compare
the test results with the error range in the tables.
Service Guide for DM3000 Series
RIGOL
3-5
Input
Function
Quick Test
point
Range
Error （1 year）
Open
DC Current
2.000000mA
± 1μA
Q
20.00000mA
± 1.2μA
200.0000 mA
± 10μA
1.000000A
± 300μA
10.00000A
[1]
± 2mA
Short
DC Voltage
Q
200.0000mV
± 14μV
2.000000V
± 14μV
20.00000V
± 100μV
200.0000V
± 2.4mV
1000.000V
[2]
± 10mV
Short
2-Wire
Ohms/
4-Wire
Ohms
[3]
200.0000Ω
± 22mΩ
2.000000kΩ
± 40mΩ
20.00000kΩ
± 200mΩ
Q
200.0000kΩ
± 2Ω
1.000000MΩ
± 10Ω
10.00000MΩ
± 600Ω
100.0000MΩ
±15kΩ
Table 3-2 Zero Offset of the Standard Equipment (DM306X)
Notes:
[1] Continuous current more than DC 7A or AC RMS 7A should be 30 seconds Off and 30 seconds
On;
[2] Each additional volt over ± 500VDC adds 0.02 mV of error;
[3] Errors in above table are corresponding to 2-wire resistance function in math Null. Without
Math Null, the error is ± 0.2 Ω additional errors in 2–wire resistance function;
[4] The reading resolution of multimeter is 6½ ;
[5] Q: Optional quick test point.
Service Guide for DM3000 Series
RIGOL
3-6
Input
Function
Quick Test
Point
Range
Error (1 year)
Open
DC Current
2.000000mA
± 1.4μA
Q
20.00000mA
± 1.6μA
200.0000 mA
± 18μA
1.000000A
± 700μA
10.00000A
[1]
± 700μA
Short
DC Voltage
Q
400.0000mV
± 32μV
4.000000V
± 240μV
40.00000V
± 2.4mV
400.0000V
± 24mV
1000.000V
[2]
± 50mV
Short
2-Wire
Ohms/
4-Wire Ohms
[3]
400.0000Ω
± 40mΩ
4.000000kΩ
± 240mΩ
40.00000 kΩ
± 2.4Ω
Q
400.0000 kΩ
± 28Ω
4.000000MΩ
± 400Ω
100.00000MΩ
± 5kΩ
Table 3-3 Zero Offset of the Standard Equipment (DM305X)
Notes:
[1] Continuous current more than DC 7A or AC RMS 7A should be 30 seconds Off after 30 seconds
[2] Each additional volt over ± 500 VDC adds 0.02 mV of error;
[3] Errors in above table are corresponding to 2-wire resistance function in math Null. Without
[4] The reading resolution of multimeter is 5½ ;
[5] Q: Optional quick test point.
On;
Math Null, the error is ± 0.2 Ω additional errors in 2–wire resistance function;
Service Guide for DM3000 Series
RIGOL
3-7
Test Signal
Function
Quick Test
Point
Range
Error (1 year)
2mA
DC Current
2.000000mA
± 2.52μA
20mA
Q
20.00000mA
± 16.2μA
200mA
200.0000 mA
± 172μA
1A 1.000000A
± 1.03mA
10A
[1]
10.00000A
± 35mA
200mV
DC Voltage
Q
200.0000mV
± 31μV
2V 2.000000V
± 170μV
20V
Q
20.00000V
± 1.8mV
200V
200.0000V
± 22.4mV
1000V
[2]
1000.000V
± 120mV
200.0000Ω
2-Wire
Ohms/
4-Wire
Ohms
[3]
200.0000Ω
± 62mΩ
2.000000kΩ
2.000000kΩ
± 340mΩ
20.00000kΩ
Q
20.00000kΩ
± 3.2Ω
200.0000kΩ
Q
200.0000kΩ
± 32Ω
1.000000MΩ
1.000000MΩ
± 160Ω
10.00000MΩ
10.00000 MΩ
± 6.2kΩ
100.0000MΩ
100.0000 MΩ
± 815kΩ
2. DC Gain Test
In DC gain test, input the standard signal output from test equipment into the input
terminal of tested equipment; and compare the test results with error shown in the
table 3-4 and 3-5.
Table 3-4 DC Gain Error of the Standard Equipment (DM306X)
Notes:
[1] Continuous current more than DC 7A or AC RMS 7A should be 30 seconds Off after 30 seconds
On;
[2] Each additional volt over ± 500 VDC adds 0.02 mV of error;
[3] Errors in above table are corresponding to 2-wire resistance function in math Null. Without
Math Null, the error is ± 0.2 Ω additional errors in 2–wire resistance function;
[4] The reading resolution of multimeter is 6½ ;
[5] Q: Optional quick test point.
Service Guide for DM3000 Series
RIGOL
3-8
Test Signal
Function
Quick Test
Point
Range
Error (1 year)
2mA
DC Current
2.000000mA
± 2.4μA
20mA
Q
20.00000mA
± 11.6μA
200mA
200.0000 mA
± 118μA
1A 1.000000A
± 1.7mA
10A
[1]
10.00000A
± 20.7mA
400mV
DC Voltage
400.0000mV
± 132μV
4V Q 4.000000V
± 1.24mV
40V
Q
40.00000V
± 12.4mV
400V
400.0000V
± 144mV
1000V
[2]
1000.000V
±350mV
400.0000Ω
2-Wire
Ohms/
4-Wire
Ohms
[3]
400.0000Ω
± 240mΩ
4.000000kΩ
4.000000kΩ
± 840 mΩ
40.00000kΩ
Q
40.00000kΩ
± 8.4Ω
400.000 kΩ
Q
400.0000kΩ
± 148Ω
4.000000MΩ
4.000000MΩ
± 2.8kΩ
100.00000MΩ
100.00000MΩ
± 2.005MΩ
Table 3-5 DC Gain Error of the Standard Equipment (DM305X)
Notes:
[1] Continuous current more than DC 7A or AC RMS 7A should be 30 seconds ON and 30 seconds
OFF;
[2] Each additional volt over ± 500 VDC adds 0.02 mV of error;
[3] Errors in above table are corresponding to 2-wire resistance function in math Null. Without Math
Null, the error is ± 0.2 Ω additional errors in 2–wire resistance function;
[4] The reading resolution of multimeter is 5½ ;
[5] Q: Optional quick test point.
Service Guide for DM3000 Series
RIGOL
3-9
Test
Signal
Input
Frequency
Quick Test
Point
Range
Error (1 year)
200mV
1kHz
Q
200.000mV
± 440μV
200mV
50kHz
200.000mV
± 460μV
200mV
300kHz
200.000mV
± 10.6mV
2V
1kHz
Q
2.00000V
± 3.6mV
2V
50kHz
2.00000V
± 9.4mV
2V
300kHz
2.00000V
±96mV
20V
1kHz
Q
20.0000V
± 36mV
20V
50kHz
20.0000V
± 94mV
20V
300kHz
20.0000V
±960mV
200V
1kHz
Q
200.000V
± 360mV
200V
50kHz
200.000V
± 940mV
200V
100kHz
200.000V
± 1.4V
750V
1kHz
Q
750.00V
± 1.35V
750V
10kHz
750.00V
± 1.35V
3. AC Voltage Gain Test
In AC voltage gain test, input the standard signal the test equipment outputs into
the input terminal of tested equipment; and compare the test results with the error
shown in the table 3-6 and 3-7.
Table 3-6 AC Voltage Gain Error of the standard equipment (DM306X)
Notes:
[1] Set the AC filter as slow ( Meas Filter Slow );
[2] Set the reading resolution as 5½ ;
[3] Q: Optional quick test point.
Service Guide for DM3000 Series
RIGOL
3-10
Test
Signal
Input
Frequency
Quick Test
Point
Range
Error (1 year)
200mV
1kHz
Q
200.000mV
± 0.6mV
200mV
50kHz
200.000mV
± 4.4mV
200mV
100kHz
200.000mV
± 8.4mV
2V
1kHz
Q
2.00000V
± 6mV
2V
50kHz
2.00000V
± 22mV
2V
100kHz
2.00000V
± 44mV
20V
1kHz
Q
20.0000V
± 60mV
20V
50kHz
20.0000V
± 220mV
20V
100kHz
20.0000V
± 440V
200V
1kHz
Q
200.000V
± 600mV
200V
50kHz
200.000V
± 2.2V
200V
100kHz
200.000V
± 4.4V
750V
1kHz
Q
750.00V
± 2.25V
750V
10kHz
750.00V
± 2.25V
Table 3-7 AC Voltage Gain Error of the Standard Equipment (DM305X)
Notes:
[1] Set the AC filter as slow ( Meas Filter Slow );
[2] Set the reading resolution as 5½ ;
[3] Q: Optional quick test point.
Service Guide for DM3000 Series
RIGOL
3-11
Test
Signal
Input
Frequency
Quick Test
Point
Range
Error (1 year)
20mA
1kHz
Q
20.0000mA
± 58μA
20mA
10kHz
20.0000mA
± 90μA
200mA
1kHz
Q
20.0000mA
± 580μA
200mA
10kHz
200.000mA
± 940μA
1A
1kHz
Q
1.00000A
± 5.6mA
1A
10kHz
1.00000A
± 7.5mA
10A
[1]
1kHz
Q
10.0000A
± 96mA
10A
[1]
5kHz
10.0000A
± 96mA
4. AC Current Gain Test
In AC current gain test, input the standard signal the test equipment outputs into
the input terminal of tested equipment; and compare the test results with the error
shown in the table 3-8 and 3-9.
Table 3-8 AC Current Gain Error of the Standard Equipment (DM306X)
Notes:
[1] Continuous current more than DC 7A or AC RMS 7A should be 30 seconds ON and 30 seconds
OFF;
[2] Set the AC filter as slow ( Meas Filter Slow );
[3] Set the reading resolution as 5½ ;
[4] Q: Optional quick test point.
Service Guide for DM3000 Series
RIGOL
3-12
Test
Signal
Input
Frequency
Quick Test
Point
Range
Error (1 year)
20mA
1kHz
Q
20.0000mA
± 120μA
20mA
10kHz
20.0000mA
± 440μA
200mA
1kHz
Q
200.000mA
± 1.2mA
200mA
10kHz
200.000mA
± 4.4mA
1A
1kHz
Q
1.00000A
± 10mA
1A
10kHz
1.00000A
± 25mA
10A
[1]
1kHz
Q
10.0000A
± 60mA
10A
[1]
5kHz
10.0000A
± 220mA
Table 3-9 AC Current Gain Error of the Standard Equipment (DM305X)
Notes:
[1] Continuous current more than DC 7A or AC RMS 7A should be 30 seconds ON and 30 seconds
OFF;
[2] Set the AC filter as slow ( Meas Filter Slow );
[3] Set the reading resolution as 5½ ;
[4] Q: Optional quick test point.
Service Guide for DM3000 Series
RIGOL
3-13
Test Signal
Frequency of
Test Signal
Quick Test
Point
Range
Error (1 year)
1V
5Hz
200.00000mV
3.5mHz
1V
10Hz
2.0000000V
4mHz
1V
40Hz
20.000000V
8mHz
1V
100kHz
Q
200.00000V
7Hz
Test Signal
Frequency of
Test Signal
Quick
Test Point
Range
Error (1 year)
1V
5Hz
200.00000mV
5mHz
1V
10Hz
2.0000000V
7mHz
1V
40Hz
20.000000V
8mHz
1V
100kHz
Q
200.00000V
20Hz
5. Frequency Gain Test
In frequency gain test, input the standard signal the test equipment outputs into
the input terminal of tested equipment; and compare the test results with the error
shown in the table 3-10 and 3-11.
Table 3-10 Frequency Gain Error of the Standard Equipment (DM306X)
Notes:
[1] Use coaxial-cable as the lead for the input signal;
[2] The reading resolution is 6½ ;
[3] Q: Optional quick test point.
Table 3-11 Frequency Gain Error of the Standard Equipment (DM305X)
Notes:
[1] Use coaxial-cable as the lead for the input signal;
[2] The reading resolution is 5½ ;
[3] Q: Optional quick test point.
Service Guide for DM3000 Series
RIGOL
3-14
Test Signal
Input Frequency
Range
Error (1 year)
2V
10Hz
2.000000V
± 103.4mV
2V
1kHz
2.000000V
± 3.6mV
2V
50kHz
2.000000V
± 9.4mV
2V
100kHz
2.000000V
±14mV
2V
300kHz
2.000000V
±96mV
20V
1kHz
20.00000V
± 36mV
200V
1kHz
200.0000V
± 360mV
200mV
1kHz
200.0000mV
± 440μV
Test Signal
Input Frequency
Range
Error (1 year)
2V
10Hz
2.000000V
± 22mV
2V
1kHz
2.000000V
± 6mV
2V
50kHz
2.000000V
± 22mV
2V
100kHz
2.000000V
± 44mV
20V
1kHz
20.00000V
± 60mV
200V
1kHz
200.0000V
± 600mV
200mV
1kHz
200.0000mV
± 600μV
Optional AC Voltage Test
In optional AC voltage test, input the standard signal the test equipment outputs into
the input terminal of tested equipment; and compare the test results with the error
shown in the table 3-12 and 3-13.
Table 3-12 Accessional AC Voltage Test Error (DM306x)
Notes:
[1] Set the AC filter as slow ( Meas Filter Slow );
[2] Set the reading resolution as 5½ .
Table 3-13 Accessional AC Voltage Test Error（DM305X）
Notes:
[1] Set the AC filter as slow ( Meas Filter Slow );
[2] Set the reading resolution as 5½ .
Service Guide for DM3000 Series
RIGOL
3-15
Current
Input Frequency
Range
Error (1 year)
20mA
10Hz
20.0000mA
± 1.034mA
20mA
1kHz
20.0000mA
± 58μA
20mA
10kHz
20.0000mA
± 90mA
1A
1kHz
1.00000A
± 5.6mA
200mA
1kHz
1.00000A
± 3.28mA
20mA
1kHz
1.00000A
± 2.758mA
Current
Input Frequency
Range
Error (1 year)
20mA
10Hz
20.0000mA
± 320μA
20mA
1kHz
20.0000mA
± 120μA
20mA
10kHz
20.0000mA
± 440μA
1A
1kHz
1.00000A
± 10mA
200mA
1kHz
1.00000A
± 6mA
20mA
1kHz
1.00000A
± 5.1mA
Optional AC Current Test
In optional AC current test, input the standard signal from testing equipment into
equipment to be tested; and compare the test results with the errors shown in the
table 3-14 and 3-15.
Table 3-14 Accessional AC Current Test Error（DM306X）
Notes:
[1] Set the AC filter as slow ( Meas Filter Slow );
[2] Set the reading resolution as 6½ .
Table 3-15 Accessional AC Current Test Error（DM305X）
Notes:
[1] Set the AC filter as slow ( Meas Filter Slow );
[2] Set the reading resolution as 6½ .
Service Guide for DM3000 Series
RIGOL
3-16
Test Signal
Quick Check
Range
Error (1 year)
2nF
2.000nF
± 90 pF
20nF
20.00nF
± 300pF
200nF
Q
200.0nF
± 3nF
2μF
2.000μF
± 30nF
20μF
Q
20.00μF
± 300nF
200μF
200.0μF
± 3μF
Test Signal
Quick Check
Range
Error (1 year)
4nF
4.000nF
± 180pF
40nF
40.00nF
± 600pF
400nF
Q
400.0nF
± 6nF
4μF
4.000μF
± 60nF
40μF
Q
40.00μF
± 600nF
200μF
200.0μF
± 3μF
Capacitance Test
In capacitance test, input the standard signal from testing equipment into the
equipment to be tested; and compare the test results with the error shown in the table
3-16 and 3-17.
Table 3-16 Capacitance Test Error of the Standard Equipment (DM306X)
Notes:
[1] Specifications are for 60 minutes warm–up using Math Null;
[2] Q: Optional quick test point.
Table 3-17 Capacitance Test Error of the Standard Equipment (DM305X)
Notes:
[1] Specifications are for 60 minutes warm–up using Math Null;
[2] Q: Optional quick test point.
Service Guide for DM3000 Series
RIGOL
3-17
Software Connection Test
UltraLogger Connection Test
USB Device Interface of DM3000 can be used to connect the computer software
UltraLogger，after successfully installing the software and USB driver and opening the
software, you will see the figure 3-2 below.
Figure 3-2 UltraLogger is successfully connected
UltraSensor Connection Test
USB Device Interface of DM3000 can be used to connect the computer software
UltraSensor; after successfully installing the software and USB driver and opening the
software; press above the software interface, the color of light on the upper right
of interface turns red into green, you will see the figure 3-3 below.
Service Guide for DM3000 Series
RIGOL
3-18
NOTE
You can download the latest UltraLogger and UltraSensor software from the
official website www.rigolna.com.
Figure 3-3 UltraSensor is successfully connected
Service Guide for DM3000 Series
4-1
Chapter 4 Calibration
The chapter mainly covers the following topics:
Calibration Security Code
Calibration Notice
DC Voltage, DC Current, Resistance Calibration
AC Voltage and AC Current Calibration
Frequency Calibration
Capacitance Calibration
RIGOL
Service Guide for DM3000 Series
RIGOL
4-2
Calibration Security Code
Setting calibration security code can ensure that the multimeter could be calibrated
only by authorized person. Before calibrating, firstly you must enter calibration
security code.
The security code of Multimeter could be made of 10 characters at most which is from
number “0~9” and letter “A~Z”. Users can set the self-defined password.
The factory default of security code is “DMCAL”, and when power is off or reset,
security code will not be changed or lost.
Set or Reset Security Code
Press , select T/C PSW to enter the primary password by the direction
buttons on front panel and set SecrOff , then enter a new code and press SecrOff
to finish new setting.
Service Guide for DM3000 Series
RIGOL
4-3
Calibration Notice
Calibration Interval
The multimeter should be calibrated on a regular interval determined by the
measurement accuracy requirement of your application. Generally, a 90 days interval
is recommended, also a 1-year interval could be used for calibrating depending on
your actual requirement. RIGOL does not recommend extending calibration intervals
beyond 1 year for any application.
Whatever calibration interval you select, RIGOL suggests that completing
re-adjustment should always be performed in conformity to its regulations offered by
RIGOL during calibrating. If you actually do this, a good performance will be hold
within interval to next calibration or longer.
Calibration Explanations
During calibrating, the calibration factor is determined by current input value and
saved in non-volatile memory and will not be changed until next calibration. Basically
two steps should be performed during calibrating: Zero Adjustment and Gain
Adjustment (except for AC and frequency measurement).
Service Guide for DM3000 Series
RIGOL
4-4
NOTE
The calibration procedure must be performed carefully to avoid affecting
instruments performance by wrong operations. Before calibrating, please pay your
attention to “Test Consideration” in chapter 3.
DC Voltage, DC Current, Resistance Calibration
The calibration procedures of DC voltage, DC current and resistance are similar, so
next will take the calibration of 4-wire resistance in the range of 20kΩ as an example
to show you procedures.
1. Press to select resistance measurement function, then press Rng+ or
Rng- to set the range as 20kΩ and the reading resolution as 6½ ;
2. Press , and select T/C PSW to input the password by the direction
buttons on front panel, then set SecrOff , next select Cal Enter ;
3. See figure 4-1, short the terminals of both Input HI-LO and Sense/Ref HI-LO via
plugging into the short pin, and the current terminal is opened. Then select Zero
to perform Zero Calibration;
Figure 4-1 The Input HI-LO and Sense/Ref HI-LO Terminals in Short Circuit
4. Finally, connect the terminals of Input HI-LO and Sense/Ref HI-LO with
corresponding terminals from Fluke 5520A, and set Fluke 5520A as 20 kΩ output
(full range input), then select Gain to perform gain calibration. After
calibrating, press Save to exit and complete calibration. Afterwards, perform
other items list in table 4-1 in the same way.
Service Guide for DM3000 Series
4-5
Function
Range
Zero
DC Gain Calibration
Input Value
Resistance
200.0000Ω
0 (input terminal shorted)
200.0000Ω
2.000000kΩ
0
2.000000kΩ
20.00000kΩ
0
20.00000kΩ
200.0000kΩ
0
200.0000kΩ
10.00000MΩ
0
10.00000MΩ
100.0000MΩ
0
100.0000MΩ
DC Voltage
200.0000mV
0 (input terminal shorted)
200.0000mV
2.000000V
0
2.000000V
20.00000V
0
20.00000V
200.0000V
0
200.0000V
1000.000V
0
1000.000V
DC Current
20.00000mA
0 (input terminal open)
20.00000mA
200.0000mA
0
200.0000mA
1.000000A
0
1.000000A
10.00000A
0
10.00000A
Function
Range
Zero
DC Gain Calibration
Input Value
Resistance
400.000Ω
0 (input terminal shorted)
400.000Ω
4.00000kΩ
0
4.00000kΩ
40.0000kΩ
0
40.0000kΩ
400.000kΩ
0
400.000kΩ
4.00000MΩ
0
4.00000MΩ
100.000MΩ
0
100.0000MΩ
DC Voltage
400.000mV
0 (input terminal shorted)
400.000mV
4.00000V
0
4.00000V
40.0000V
0
40.0000V
400.000V
0
400.000V
1000.00V
0
1000.00V
DC Current
20.0000mA
0 (input terminal open)
20.0000mA
200.000mA
0
200.000mA
1.00000A
0
1.00000A
10.0000A
0
10.0000A
Table 4-1 DC Zero and DC Gain Calibration Input Value (DM306X)
Table 4-2 DC Zero and DC Gain Calibration Input Value (DM305X)
RIGOL
Service Guide for DM3000 Series
RIGOL
4-6
NOTE
Frequency correction is not required during calibrating AC current.
AC Voltage and AC Current Calibration
Comparing the calibration procedure with DC, when calibrating AC function Frequency
correction and Middle range calibration are appended to be executed but Zero
calibration. Take the calibration of AC voltage in the range of 200mV as an example:
1. Press to select AC voltage measurement function, then press Rng+ or
Rng- to set the range as 200mV and the reading resolution as 5½ ;
2. Press , and select T/C PSW to input password and set SecrOff ,
then select Cal Enter ;
3. Select Freq and select 50Hz frequency correction. Then input a sine wave of
100mV, 50Hz into the terminal of Input HI-LO by Fluke 5520A, after that, press
Meas and select 200 kHz frequency correction. Next, input a sine wave of 200
kHz into the terminal of Input HI-LO by Fluke 5520A. Then press Meas and
select Done to return to last menu.
4. Output a sine wave of 100mV, 1 kHz into the terminal of Input HI-LO by FLuke
5520A. Select Middle to perform middle range calibration, then go on output a
sine wave of 200mV, 1kHz into the terminal of Input HI-LO by FLuke 5520A , after
that, press Gain to perform full range calibration, finally select Save to exit
and complete calibrating AC voltage in the range of 200mV. Afterwards, perform
other items list in table 4-2 in the same way.
Service Guide for DM3000 Series
4-7
Function
Range
Frequency
Correction
Signal
Middle
Calibration
Signal
Full Range
Calibration
Signal
AC
Voltage
200mV
50Hz/100mV
1kHZ/100mV
1kHz/200mV
200kHz/100mV
2V
50Hz/1V
1kHz/1V
1kHz/2V
200kHz/1V
20V
50Hz/3V
1kHz/10V
1kHz/20V
200kHz/3V
200V
50Hz/10V
1kHz/100V
1kHz/200V
200kHz/10V
750V
50Hz/10V
1kHz/375V
1kHz/750V
200kHz/10V
AC
Current
2mA
Null
1kHz/1mA
1kHz/2mA
20mA
1kHz/10mA
1kHz/20mA
200mA
1kHz/100mA
1kHz/200mA
1A
1kHz/500mA
1kHz/1A
10A
1kHz/5A
1kHz/10A
RIGOL
Table 4-3 AC Calibration Input Value
Service Guide for DM3000 Series
RIGOL
4-8
Function
Range
Zero
Gain Input
Capacitance
2nF
Input Null
2nF
20nF
20nF
200nF
200nF
2μF
2μF
20μF
20μF
200μF
200μF
Frequency Calibration
Frequency calibration is easier than others; generally just calibrate 2V range is enough.
The frequency calibration procedure is:
1. Press to select AC voltage measurement function, then press Rng+ or
Rng- to set the range as 2V;
2. Press , and select menu button T/C PSW , input password, and set
SecrOff , then select CAL Enter ;
3. Input a sine wave of 1V, 450 kHz into the terminal of Input HI-LO by FLuke 5520A,
and press Gain , finally select Save and exit.
Capacitance Calibration
The way to calibrating Capacitance is similar with AC but a little difference. It also
includes Zero calibration and Gain calibration, but all the input terminals on front panel
are opened. Please refer to the section “AC calibration” about the detailed procedure.
The capacitance calibration input values are shown in table 4-3.
Table 4-4 Capacitance Calibration input Value
Service Guide for DM3000 Series
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Chapter 5 Disassembly & Assembly
The chapter mainly covers the following topics:
The Disassembly and Assembly Notice
The 3D View of DM3000
To Disassemble and AssembleHandle, Rear Panel and Metallic Shell
To Disassemble and Assemble Fuse Socket, BNC Module and GPIB PCB
To Disassemble and Assemble Filter Board and Transformer
To Disassemble and Assemble Front Panel and LCD
To Disassemble and Assemble Multiplexer Board, Motherboard and Key Board PCB
RIGOL
Service Guide for DM3000 Series
RIGOL
5-2
!
The Disassembly and Assembly Notice
Notice:
Please don’t disassemble the instrument except the work need
Please don’t disassemble the instrument except the professionals
Please cut off the multimeter power when disassembling
Please wear the anti-static hand-ring or take other anti-static measures when
disassembling
Please use the proper tools and disassemble in order
Prevent the transfiguration of metallic parts and avoid to be injured when disassembling
Tools:
Club screwdriver T10, T15
Clamps
WARNING Before disassembling, please make sure the power is cut off.
The operation stuff should be trained and have acquired the related
qualification.
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5-3
The 3D View of DM3000
The 3D views of DM3000 are shown in the figure 5-1 and figure 5-2. You should have a
primary understanding of the main parts of the instrument before disassembling and
assembling. In progress of disassembling or assembling, please operate gently and step by
step. Note that please not scratch the surface of the device and damage PCB and so on by
tools, see the Disassembly and Assembly Notice. The disassembly order suggested is given as
followings (for example DM3064):
Handle Rear Panel Metallic Shell Fuse Socket BNC & GPIB PCB Filter
Board and Transformer Front Panel and LCD Multiplexer Board
Motherboard Key Board PCB.
The assembly step is reverse.
Figure 5-1 The Exterior 3D View of DM3000
Service Guide for DM3000 Series
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5-4
Figure 5-2 The Interior 3D View of DM3000
Service Guide for DM3000 Series
RIGOL
5-5
To Disassemble and Assemble
Handle, Rear Panel and Metallic Shell
Grip both side of handle and pull it outward, then rotate the handle to the desired position in
order to take it away. See figure 5-3. The disassembly method of rear panel and metallic shell
is shown in the figure 5-4, figure 5-5.
Figure 5-3 The Schematic of Disassembling and Assembling Handle
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5-6
Figure 5-4 The Schematic of Disassembling and Assembling Rear Panel
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5-7
Figure 5-5 The Schematic of Disassembling and Assembling Metallic Shell
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RIGOL
5-8
To Disassemble and Assemble
Fuse Socket, BNC Module and GPIB PCB
Figure 5-6 The Schematic of Disassembling and Assembling Fuse Socket
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RIGOL
5-9
Figure 5-7 The Schematic of Disassembling and Assembling BNC Module
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5-10
Figure 5-8 The Schematic of Disassembling and Assembling GPIB PCB
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RIGOL
5-11
To Disassemble and Assemble
Filter Board and Transformer
Figure 5-9 The Schematic of Disassembling and Assembling
Filter Board and Transformer
Service Guide for DM3000 Series
RIGOL
5-12
To Disassemble and Assemble
Front Panel and LCD
Figure 5-10 The Schematic of Disassembling and Assembling
Front Panel and LCD
Service Guide for DM3000 Series
RIGOL
5-13
To Disassemble and Assemble
Multiplexer Board, Motherboard and Key Board PCB
Figure 5-11 The Schematic of Disassembling and Assembling Multiplexer Board
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RIGOL
5-14
Figure 5-12 The Schematic of Disassembling and Assembling Motherborad
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RIGOL
5-15
Figure 5-13 The Schematic of Disassembling and Assembling Key Board PCB
Above procedures and orders of disassembly and assembly are recommended to avoid the
damage to equipment during operating and save your time.
Service Guide for DM3000 Series
RIGOL
6-1
Chapter 6 Troubleshooting & Maintenance
The chapter mainly covers the following topics:
DM3000 Principle Introduction
Troubleshooting
Common Troubleshooting
Components Inspection
Replaceable Part List
Maintenance and Cleaning
Even though great care was taken in the design of DM3000 series, problems may occur. So,
please read this chapter carefully to get more information about troubleshooting and
maintenance.
Service Guide for DM3000 Series
RIGOL
6-2
Motherboard
（Front End Circuit）
（CPU）
Current Input Fuse Banana Socket
BNC
Board
LAN/GPIB
Board
（Except
DM30X1）
LCDKey
Board
USB
Board
Swiching Board
（
Only for DM30X4
）
Filter Board
Transformer
Power Input
Circuit
Floating
Circuit
Ground
Circuit
DM3000 Principle Introduction
The circuit of DM3000 series can be divided into floating circuit, grounding circuits and power
input.
1. The floating circuit includes current fuse, front panel signal input end (banana socket) and
measurement analog front-end which contains circuits such as the input protection of all
the measurement function, function switch, signal transform conditioning, A/D conversion
and control interface.
The structural schematic diagram of circuit from DM3000 Series is as follows:
Figure 6-1 Circuit Diagram of DM3000 series
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6-3
2. Ground circuit contains keyboard, LCD, USB Host, BNC board, LAN/GPIB board and the
host CPU of motherboard.
3. The AC power inpour into the multimeter via power socket and connect with transformer
through filter board that divides it into multi low voltage and floating into circuit and
ground circuit respectively. The power supply of ground circuit is 9V AC voltage and the
floating circuit is a group of 8.5V AC voltage and two groups of 17V AC voltage. The
commutate, filter and regulation circuit in floating and grounding circuit transform the
low-voltage AC into stable DC voltage and supply power to each circuit.
Connect the control circuit of multiplexer board with host CPU and then connect the
output terminal of multiplexer board with analog front-end.
when measuring，the host CPU will send commands to control the analog front-end to
switch function and range. Then the analog front-end return the result from A/D
transform and cymometer to host CPU, eventually, the host CPU will calibrate these
results and display according to control the LCD.
When multiplexer measuring, firstly the host CPU will control the analog front-end to
switch to multiplex board, and then send commands to shift to certain channel,
eventually, perform same procedures to get final result.
Service Guide for DM3000 Series
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6-4
Troubleshooting
Common Troubleshooting
1. After press the power switch, the multimeter is blank screen with nothing
display:
(1) Check if the power is correctly connected.
(2) Check if the main power switch on the Rear panel has been turn on.
(3) Check if the power light on Front panel is bright.
(4) Check if the safety fuse is blown; replace a new one if necessary.
(5) Check if the power selector is in correct position.
(6) If the unit still cannot work properly, please contact with your local RIGOL Service
center.
Instruction of Power Supply Button:
Light: ON; Twinkle: STAND BY; Dark: OFF.
Tips:
How to change the fuse of power supply:
The electric power fuse locates within the fuse socket at the Rear panel of Multimeter which has
already been equipped when the instrument leaves factory.
The replacing sequence for a fuse is:
Disconnect the power. Use a tool to press the block down (as the dashed pointed in the
picture) and then pull out the fuse socket.
After replacing, put the fuse socket back into the slot.
Check whether the voltage is in correct level.
Figure 6-2 The Sketch Map of Fuse Replacement
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!
CAUTION: Make sure the power is cut off before replacing fuse, and the
specifications of fuse should be in accordance with the requirements
in this manual.
2. When the reading display is incorrect:
(1) Check whether the range is consistent with test items.
(2) Check whether the recommended calibration date is exceed. If the testing value
exceeds the range in corresponding accuracy index, please contact authorized
calibration center of RIGOL to calibrate.
(3) If the instrument still can not work in the course of nature, please contact with your
local RIGOL Service center.
3. When the back light of the screen is dark:
(1) Adjust its brightness and contrast.
(2) If the instrument still can not work in the course of nature, please contact with your
local RIGOL Service center.
4. When the multiplexer work abnormally:
(1) Check whether the module connection cable and test lead is correctly connected.
(2) Check whether the multimeter could communicate with PC normally.；
(3) Check whether the correct range has been set to multiplexer test
(4) If the instrument still can not work in the course of nature, please contact with your
local RIGOL Service center.
5. When the multimeter can not access into the test interface:
(1) Check whether you turn on the instrument following the requirements in manual
(2) Check whether GPIB/LAN extension board is connected with the motherboard
normally.
(3) If the instrument still can not work in the course of nature, please contact with your
local RIGOL Service center.
6. When the multimeter can not communicate with PC by its software:
(1) Check whether the USB cable is connected correctly.
(2) Take Windows system as example, check device manager to make sure whether PC
recognizes the host machine connection.
(3) Check whether install the drive, you can download the drive program in the website
www.rigol.com
(4) Check whether the software version is matching with current firmware version.；
(5) If the instrument still can not work in the course of nature, please contact with your
Service Guide for DM3000 Series
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6-6
!
local RIGOL Service center..
7. For the other malfunctions, please contact with RIGOL maintain ace centre or
refer to “service and support.
WARNING: Only authorized personnel by RIGOL could disassemble the
instrument, or else no warranty would be available.
Service Guide for DM3000 Series
RIGOL
6-7
AC 110V
AC 110V
AC 8.5V
AC 17V
AC 17V
AC 9V
Red
Yellow
White
Blue
Blue
Brown
White
Yellow
Black
Black
Components Inspection
From this part, you can get more information about malfunction in order to process hard
troubleshooting by yourself.
1. Fuse
DM3000 have many fuse designs, the one can be changed by customer themselves is
power instrument pipe and current fuse, the parameters are as follows:
Power fuse: 250V, 300mA, quick-break
Current fuse: 10A, quick-break
Inspection method：
Test the continuity by DM. If no connection beep, the fuse is supposed brown.
2. Power Frequency Transformer
DM3000 adopts power frequency transformer, and the power socket equips with fuse
socket and power source switch. The voltage switch function extend the voltage adjust
range all over the world. Voltage switch has options of 230V/115V, when the commercial
power is 220V, you should select “230”; if the commercial power is 110V, you should select
“115”.
Inspection method：
Check the voltage among windings
Figure 6-3 Transformer Sketch Map
Service Guide for DM3000 Series
6-8
windings
Max(Vrms)
Min(Vrms)
Typical（Vrms）
Original
side
White-Yellow
132
90
110
White-Red
265
180
220
Vice side
Black-Black
10.8
7.3
9
White-Yellow
21
14
17
Yellow-Brown
21
14
17
Blue-Blue
10.3
6.9
8.5
RIGOL
Compare the measured voltages of each winding with table2.1, we can see that:
Table 6-1 Check Table of Voltages among Windings of Transformer
If all the winding voltages among original side are 0, there might be something wrong
with filter board or power source socket.
If the original voltage is half or double of the typical value, inaccurate location might be
selected by AC voltage selectors.
If the vice side voltage is less than the minimum value, short circuit might be
happened within mainboard. You can pull out the vice side socket of the transformer
from the motherboard (please cut off the electricity before operating), then test the
voltage in vice side. If the voltage is upturned, short circuit might be happened within
mainboard or transformer malfunctions.
If you make sure that it was the malfunction of Power frequency transformer, please
contact RIGOL.
3. Display
DM3000 series utilize homochromatic LCD, support Power-on testing.
Inspection method：
Press the second menu operation key in the left side, at the same time turn on the
multimeter, keep pressing for about 5 seconds until you hear beep. After that, multimeter
starts testing display within a tip message on the screen “Press ·Help· Key to Switch,
Hold ·Help· Key to Exit”.
Press Help button, the screen would switch between Full white (all pixel are bright) and Full
black (all pixel are put out).
Press Help button for about 2 seconds, the display return to normal measurement state.
If you make sure it was the malfunction of the screen, please contact RIGOL.
4. Keyboard
DM3000 series utilize LED backlight button design, which is more convenient and accurate.
Service Guide for DM3000 Series
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6-9
!
Inspection method:
Press the first menu operation key in the left side, at the same time turn on the multimeter,
keep pressing for about 5 seconds until you hear beep. After that, multimeter starts testing
display. In this state, the basic measure keys, parameter keys and trigger control keys
would twinkle and the screen displays keyboard testing menu. When you first press a
button, the corresponding icon in the test interface would change to reverse video, after
this,, the icon would vary with the button you have pressed.
If you make sure it was the malfunction of keyboard, please contact RIGOL.
Tips:
Some difficulties could be solved by recalling factory setup.
For example, parts of setup mistakes or Non-fault errors could be eliminated by this way:
Press Utility System Setup Factory
It will be difficult to read the information on the interface if the display configuration is
abnormal; we can recall the factory setup by another way to solve this problems:
Keep pressing the second menu operation key and turn on the multimeter. Keep pressing for
about 5 seconds until you hear beep. After that, the mulitimeter will load the factory
configuration automatically.
CAUTION: You can contact RIGOL technical support department or RIGOL
authorized distributors when there is malfunction. Do not disassembly
the instrument by yourself to avoid accident or losing.
Service Guide for DM3000 Series
RIGOL
6-10
Replaceable Part List
RIGOL provides some replaceable parts in order to maintain or update for users. Please see
as the following table.
Service Guide for DM3000 Series
6-11
Part No.
Name
1
Front Panel
2
Rubber Keypad
3
Keyboard
4
Banana Socket
5
Metal Body
6
Fan
7
Screw
8
Handle
9
BNC Nut
10
10A Fuse
11
Outer Housing
12
Rear Panel
13
Non-slip Mat
14
Multiplexer Module
15
RS-232 Interface
16
USB Device Interface
17
Multiplexer Module
Interface
18
Motherboard
19
Fuse Base
20
300mA Fuse
21
Power Outlet
22
Rear BNC Board
23
BNC(Plastic)
24
Power Frequency
Transformer
25
Filter Board
26
LAN Interface
27
LAN&GPIB Board
28
GPIB Interface
29
Front USB Board
30
USB Host Interface
31
LCD screen
RIGOL
Table 6-2 Replaceable Part List
You can contact RIGOL technical support department or RIGOL authorized distributors to
change the part, take a reference of chapter “Contact Us” to get the contact information.
Service Guide for DM3000 Series
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6-12
!
Maintenance and Cleaning
System Maintenance
In order to ensure the running performance of instrument and extend useful time, please
abide by the following advices:
1. Before operating please ensure that all the performance and particular using method. Have
been taken into you memory and brain. For any puzzles please refer to Chapter 2.
2. Do operate or storage the instrument under the environment of dustproof, quakeproof,
dampproof, antimagnetic, static-free and other relative requests as soon as possible.
Meanwhile, do not expose it in the sun for a long time to avoid reducing the measurement
precision and useful time.
3. Operating with malfunction is forbidden. If some malfunctions occurred duing running,
please solve this problem first. Besides, test and calibrate the instrument within stated term
to ensure the creditability of measurement.
4. Do the relevant neatening work after using.
5. Keep corresponding accessories safe for next using. Please refer to “Check the list of
accessories” in Chapter 2.
General Care
Do not store or leave the instrument in where the LCD display will be exposed to direct sunlight
for long periods of time.
Caution
To avoid damage to the instrument and test lead, do not expose them to sprays, liquids, or
solvents.
Cleaning
To clean the exterior surface, perform the following steps:
1. Remove loose dust on the outside of the instrument and test lead with a lint- free cloth.
Take care to avoid scratching the clear plastic display filter.
2. Use a soft cloth dampened with water to clean the instrument, disconnect it from all power
sources. If this instrument requires cleaning, and clean it with a mild detergent and water..
To avoid damage to the surface of the instrument, do not use any abrasive or chemical
cleaning agent.
CAUTION: Make sure the instrument is completely dry before reconnecting it to a
power source.
Service Guide for DM3000 Series
RIGOL
7-1
Chapter 7 Service & Support
Warranty
1. RIGOL Technologies, Inc. warrants its products’ mainframe and accessories in materials
and techniques within the warranty period. During the period of warranty, RIGOL
guarantees to do free replacement or repair for products which are approved defective.
2. The mainframes of RIGOL’ s products have a three-year warranty and the accessories such
as probe and test pen (with the exception of power cord, USB and BNC cable) have a
one-year warranty . In above-mentioned periods, any hardware or software error caused by
quality flaws will be examined and repaired by RIGOL Maintenance Center or its authorized
maintenance branch for free if the customer provides the warranty card and maintenance
record card. RIGOL provides paid maintenance for products which exceed warranty period.
3. The warranty period starts from the date on the valid certificate of purchase (receipt or
invoice). If the invoice can not be offered, the starting date will adopt the manufacture
delivery date.
4. Warranty period extended plan. RIGOL extends warranty deadline to a maximum of three
months (to compensation the time of transportation and storage by dealer) which is applied
for only the customer who has sent back both the return receipt of warranty card and the
copy of certificate invoice to RIGOL Maintenance Center (relative documents should be
sent back within 30 days from date of purchase, subjected to local postmark or EMS delivery
date).
5. For products with free maintenance, RIGOL promise to maintain the instrument within five
working days and send back to you for free. For special transportation requirement, please
contact the RIGOL Maintenance Center ahead of schedule.
6. The warranty is avoid when:
(1) Accidental damage during transporting (please confer with insurance agency or
transportation company about the compensation).
(2) Malfunctions or damages caused by the wrong installation or operation in disallowed
environment.
(3) Surface damage by manmade factors such as burn, distortion by extrusion and the
like.
(4) Repaired by anyone who is not from RIGOL Maintenance Center or an authorized
maintenance branch including disassemble and repair without permission, rebuild
exceed authority, replace parts and tear up the warranty seal and so on.
(5) Accidental damage by using a power supply or a power adapter not authorized by
RIGOL.
Service Guide for DM3000 Series
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7-2
(6) Malfunctions or damages caused by irresistible natural calamities, such as earthquake,
lightning strike, etc.
7. About defective products not belongs to warranty bound ( include exceed warranty period
or extended warranty period), RIGOL will start to maintain after getting the admission from
user, after repairing, we will send back to the owner of instrument within 5 working days as
soon as we receive the upkeep and man-hour charge. If the owner refuse to repair, RIGOL
Maintenance Center will send defective products back to its owner when receive formal
affirm fax and man-hour charge for inspection. Concerning about problems occurred during
transporting please refer to User Guide. If there are any doubts or difficulties please contact
RIGOL Technical support department or Maintenance Center to avoid unnecessary
damages.
8. For any direct or indirect losing caused by incorrect operations by users, RIGOL may take in
hand only some maintenance responsibilities with rationality and maneuverability.
9. Malfunction instrument should be send back to RIGOL Maintenance Center for repairing
and the carriage should be paid by consignor when repairing for second time in principle.
10. For special requirements for maintenance or service such as door-to-door service please
contact with RIGOL Maintenance Center.
Warranties shown above are apply to the products sold by RIGOL Technologies, Inc. and its
authorized dealers, any other form of warranty should be based on these. RIGOL
Maintenance Center has the final power of interpretation with the maintenance affairs.
Service Guide for DM3000 Series
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7-3
Contact Us
If you have any problem or requirement occurs when using our products, please contact
RIGOL Technologies, Inc. or the local distributors.
In China: Please call
Tel: (86-10) 8070 6688
Fax:(86-10) 8070 5070
Service & Support Hotline: 800 810 0002
9:00 am–5: 00 pm from Monday to Friday
Or by e-mail:
service@rigol.com
Or mail to:
RIGOL Technologies, Inc.
156# CaiHe Village, ShaHe Town, ChangPing District, Beijing, China
Post Code: 102206
Overseas: Contact the local RIGOL distributors or sales office.
For the latest product information and service, visit our website: www.rigolna.com
.
Service Guide for DM3000 Series
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